'use strict'

const Promise = require('bluebird')
const restify = require('restify')
const jwt = require('jsonwebtoken')
const jwtVerifyAsync = Promise.promisify(jwt.verify, jwt)

const jwtToken = 'baw=)Y418"oS'

const server = restify.createServer({
  name: 'jwttoken',
  version: '0.1.0'
})
server.use(restify.acceptParser(server.acceptable))
server.use(restify.queryParser())
server.use(restify.bodyParser())

server.post('/authenticate', function (req, res, next) {
  if (req.params && req.params.username && req.params.password) {
    if (isLoginValid(req.params.username, req.params.password)) {
      let userObj = {
        username: req.params.username,
        role: 'Admin'
      }

      return jwt.sign(userObj, jwtToken, {
        algorithm: 'HS256',
        expiresIn: 60 * 60 * 5,
        audience: 'client',
        subject: 'subject',
        issuer: 'localhost',
        jwtid: '000000',
        header: {
          'typ': 'JWT',
          'alg': 'HS256'
        }
      }, function(err, token) {
        res.send('{status: \'Success!\', token: \'' + token + '\'}')
        return next()
      })
    }

    res.send(405, '{status: \'Fail!\', messsage: \'Invalid username and/or password!\'}')
    return next()
  }

  res.send(400, 'Bad request!')
  return next()
})

server.listen(8080, function () {
  console.log('%s listening at %s', server.name, server.url)
})

function isLoginValid(userId, password) {
  if (userId === 'admin' && password === 'password') {
    return true
  }

  return false
}